Poorly Juniperus Squamata 'Blue Carpet'
I wonder if anyone can help me with some conifers, please? I have four Juniperus Sqamata 'Blue Carpet' in various locations around the garden - two larger ones on a north facing slope/ rockery which have been there 3 years, and two small ones planted late last summer in a shady bed. All four appear to be dead this spring - yellowy brown throughout, with maybe a little green at their centres. What's causing it, are they dead and can I fix it?